Results 61 to 70 of about 980 (161)

Utilización de insectos en el control de plagas hortícolas [PDF]

open access: yes, 2004
En Producción Integrada, el control de las plagas y enfermedades de los cultivos se realiza aplicando un conjunto de métodos satisfactorios desde el punto de vista económico, ecológico y toxicológico, dando prioridad al empleo de elementos naturales ...
Contreras Gallego, Joséfa
core   +1 more source

NATURAL ENEMIES OF DIURAPHIS NOXIA (STERNORRHYNCHA: APHIDIDAE) IN SLOVAKIA [PDF]

open access: yesJournal of Central European Agriculture, 2009
A study from 2002 documented the occurrence of natural enemies (parasitoid wasps, predatory fl ies, entomopathogenic fungi) associated with colonies of the Russian wheat aphid, Diuraphis noxia (Kurdjumov, 1913) (Sternorrhyncha: Aphididae), in the spring ...
Peter TÓTH   +2 more
doaj  

Effect of male densities on sex ratio variations of the predatory gall midge, Aphidoletes aphidimyza (Diptera: Cecidomyiidae) [PDF]

open access: yesArthropods, 2012
Monogeny, the production of unisexual broods by individual females, is a well-known characteristic in several species of gall midges (Diptera: Cecidomyiidae).
Seyed Mohammad Tabadkani   +2 more
doaj  

Cost and benefits of the morphological defences in larvae of Scymnus nubilus Mulsant (Coleoptera: Coccinellidae) [PDF]

open access: yes, 2012
Dissertação de Mestrado - Biotecnologia em Controlo Biológico.Diferentes mecanismos de defesa contra a predação e parasitismo evoluíram entre os insectos. Estes podem ser químicos, comportamentais ou estruturais. As larvas do pequeno coccinelídeo Scymnus
Pacheco, Paulo Alexandre Botelho
core  

The Efficacy of Botanical Insecticides Sold in the EU Against Metopolophium dirhodum, and Their Safety for Aphid Predators Aphidoletes aphidimyza and Chrysoperla carnea

open access: yesAgronomy
Botanical insecticides represent environmentally acceptable alternatives to synthetic products, and botanical insecticides represent environmentally acceptable alternatives to synthetic insecticides, which are regulated in the European Union.
Matěj Novák, Roman Pavela
doaj   +1 more source

Apple aphid, Aphis spp. (Hemiptera: Aphididae), and predator populations in an apple orchard at the non-bearing stage: The impact of ground cover and cultivar

open access: yesEuropean Journal of Entomology, 2008
A two-year field experiment was conducted to determine whether a conservation biological control strategy could be applied to enhance the biological control of green apple aphids, Aphis spp., in a high-density and scab-resistant apple orchard at the non ...
Bruno FRÉCHETTE   +4 more
doaj   +1 more source

Pflanzenschutzempfehlungen für den Gemüsebau - Salat, Kohlarten, Karotten, Sellerie, Zwiebeln, Lauch, Buschbohnen, Randen, Spinat, Gurken, Tomaten [PDF]

open access: yes, 2004
Diese Publikation enthält detaillierte und aktuelle Informationen zu vorbeugenden und direkten Pflanzenschutzmassnahmen in einzelnen Kulturen und Kulturgruppen.
Koller, Martin   +2 more
core  

Influence of Aphis gossypii Glover (Hemiptera: Aphididae) density on life table parameters of Aphidoletes aphidimyza Rondani (Diptera: Cecidomyiidae) under laboratory conditions

open access: yesJournal of Crop Protection, 2013
Life table gives the most comprehensive explanation of the survivorship, development, and reproduction of a population. The life table parameters of an aphidophagous midge, Aphidoletes aphidimyza were studied on different densities (5, 10, 20, 40, 60, 80)
Khadijeh Madahi   +2 more
doaj  

ترجیح طعمه لارو پشه (Diptera: Cecidomyiidae) Aphidoletes aphidimyza Rondani نسبت به شته های مومی کلم، جالیز و اقاقیا در شرایط آزمایشگاهی [PDF]

open access: yesتحقیقات آفات گیاهی, 2012
پرورش انبوه و استفاده از شکارگرها در برنامه های کنترل آفات، مستلزم آگاهی از مناسب­ ترین طعمه برای تغذیه آن­ هاست. ترجیح لاروهای چهار روزه پشه شکارگرAphidoletes aphidomyza Rondani، نسبت به پوره ­های سن سوم شته ­های جالیز  Aphis gossypii Goeze، اقاقیاAphis
خدیجه مداحی   +2 more
doaj  

Effect of different foraging periods on the functional response of Aphidoletes aphidimyza (Diptera: Cecidomyiidae) at different densities of Aphis craccivora

open access: yesJournal of Crop Protection, 2014
Searching efficiency and handling time are two major components of functional response and are usually used to evaluate effectiveness of natural enemies. The effect of different foraging periods on the functional response of larval Aphidoletes aphidimyza
Reza Jalalipour   +2 more
doaj  

Home - About - Disclaimer - Privacy